A reliability approach to interconnection planning

Abstract
Probability methods have been used to investigate the effect of the outage of key transmission lines on the reliability of an interconnected power system. The results have been expressed as the probability of loss of import capability due to loss of such key lines. A study technique is developed that relates the reliability of the simultaneous interchange capability (SIC) to a given interconnected system during periods when intercompany transfers are required. Application of the study technique to a typical system demonstrates the sensitivity of the method to various forced outage rates and to the number of days involving heavy transmission loading.

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